多机电力系统扭振相互作用的研究综述  

A SURVEY ON TORSIONAL INTERACTION IN MULTI-MACHINE POWER GRID

作　　者：周长春[1] 徐政[1] 王冠[2] 

机构地区：[1]浙江大学电机系,浙江省杭州市310027 [2]山东大学电气工程学院,山东省济南市250061

出　　处：《电网技术》2004年第6期1-4,共4页Power System Technology

基　　金：国家自然科学基金资助项目(50277034);国家重点基础研究专项经费资助项目(G1998020310)。

摘　　要：介绍了多机电力系统机组间电气耦合对轴系扭振特性的影响,以及机组自然频率与机组扭振相互作用的关系,并对复杂系统中并列运行的相同发电机和不同发电机间的扭振相互作用进行了分析,归纳了不同运行条件下机组等值简化的基本原则。To analyze the subsynchronous oscillation occurred in multi-machine power grid usually it is necessary to simplify the power grid by equivalence of generating sets. On the basis of related references the influence of the electrical couplings among the generating sets on the characteristics of shafting torsion is presented and the interaction between the natural frequency of a generating set and its torsion is described. The torsional dynamics between the parallel identical turbine-generators are induced as well as that between the parallel non-identical turbine-generators, then the basic principle of equivalent simplification of generating units for different operational condition is summarized.

关 键 词：电力系统 扭振 多机系统 电气耦合 振荡频率 

分 类 号：TM712[电气工程—电力系统及自动化]